Detachable fastening for tool-handles



(No Model) A. BOHY.

DETAUHABLB' FASTENING FOR TOOL HANDLES. No. 573,565. Patented Dec. 22,1896.

UNITED STATES I PATENT OFFICE.

AIME BOHY, OF \VHAT CHEER, IOWA.

DETACHABLE FASTENING FOR TOOL-HANDLES.

SPECIFICATION formingpart of Letters Patent No. 573,565, dated December22, 1896.

Application filed October 22, 1896. Serial No. 609,694:- (No model.)

To (6Z6 whom 2 0' may concern:

Be it known that I, AIME BOHY, a citizen of the United States, residingat What Cheer, in the county of Keokuk and State of Iowa, have inventedcertain new and useful Improvements in Detachable Fastenings for Tool-Handles; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to certain new and useful improvements indetachable fasten ings for tool-handles; and it has for its object theprovision of a simple and eflicient and at the same time inexpensivemeans whereby picks, axes, hammers, and other tools of like generalcharacter may be quickly and easily locked in place upon the handle andas readily removed when occasion requires.

To this end and to such others as the invention may pertain, the sameconsists in the novel features of construction and in the peculiararrangement, combination, and adaptation of parts, all as more fullyhereinafter described, shown in the accompanying drawings, and thenspecifically defined in the appended claim.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which drawings- Figure l is a perspective view ofa tool, showing the end of the handle removed from its socket, the partsbeing shown in their relative positions. Fig. 2 is a sectional view ofthe tool upon a larger scale, the tool in this view being shown assecured to the handle.

Reference now being had to the details of the drawings by letter, Adesignates a toolhandle, to the end of which is secured a metallicportion B, the end of the handle being inserted within an opening orsocket in the said portion B, as shown in Fig. 2 of the drawings.

Cast or formed integral with the body portion of the part B is anextension C, the general form of which is in horizontal cross-sectionsemielliptical, and at the extreme upper end of the said extension 0 isprovided a horizontal extension D, which extends a short distance beyondthe apex of the elliptical side of the extension 0, as is shown clearlyin Fig. 1 of the drawings. The side of the extension 0 opposite to thatwhich forms the apex of the ellipse is concaved or formed upon the arcof a circle, as is shown at E, and the inner end of the extension D iscut away to form a shoulder e.

A circular opening F, interiorly screw-- threaded, is provided in theend of the portion 13 adjacent to the concaved side E of the extension0.

The tool-head G is provided with the usual opening H, said opening beingelongated slightly in the direction of the length of the head, one endof the said elongated opening being elliptical to conform to theelliptical side of the extension 0, and its opposite side being formedupon the arc of a circle corresponding to the are upon which theconcaved side E of the extension 0 is formed.

In assembling the parts, or, in other words, in securing the tool-headto the handle, the extension 0 is passed through the opening in thetool-head, and the portion D enters a corresponding depression I, whichis provided for its reception at one side of the opening in the upperface of the tool-head. A key or bolt J, having its lower endscrew-threaded, as shown at K, and its upper end provided with anenlargement or collar flange L, is then inserted within the opening,said key being screwed firmly into place by means of a key which engagesthe angular opening M in the upper end of the said key or bolt, as isindicated in dotted lines in Fig. 2 of the drawings.

It will be at once seen that when the toolhead has been fastened to thehandle in the manner above described it will be held securely againstthe possibility of accidental displacement, and it will also be seenthat the head can be quickly and easily removed when occasion requires.

Having thus described my invention, what I claim to be new, and desireto secure by Letters Patent, is-

A fastening for a tool-handle, consisting of the head having anelliptical-shaped aperture of the handle, substantially as shown anddetherein, a shouldered portion about a portion scribed. t 10 of thesaid aperture, combined with the han- In testimony whereof I afiix mysignature dle having the extended portion 0, having a in presence of twowitnesses. A

concaved portion E and offset D, and shoul- AIME BOHY. dered as at e,and the screw-threaded bolt Vitnesses:

designed to be inserted through the aperture LOUIS SAILLEY,

in the head, and into an aperture in the end HYECINTHE PAGET.

